Magnetic Flux Converter — Weber & Maxwell

Convert magnetic flux between webers, milliwebers, microwebers, maxwells, and volt-seconds.

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How this conversion works. Flux is converted through the weber; the maxwell relation (10⁻⁸ Wb) is exact per NIST Special Publication 811.

How to use

  1. Pick the unit you are converting from, such as Weber (Wb) or Milliweber (mWb).
  2. Type the value and every other unit updates as you type.
  3. Copy the figure you need, or use the swap button to reverse the direction, Maxwell (Mx) included.

Frequently asked questions

How do I convert weber to maxwell?

1 weber = 1.0000e+8 maxwell. Choose "Weber (Wb)" as From and "Maxwell (Mx)" as To, type a value, and the result updates instantly.

How many maxwells are in a weber?

10⁸ (100 million) — the maxwell is 1 gauss × cm² while the weber is 1 tesla × m², and both factors of 10⁴ multiply.

Why does a volt-second equal a weber?

Faraday’s law: EMF = −dΦ/dt. A flux change of 1 Wb in 1 s induces 1 V, so the weber is dimensionally a volt-second — useful when sizing transformer cores.

Is my data sent to a server?

No. Conversions run entirely in your browser using fixed factors — nothing is uploaded or logged.

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